Heavy Rainfall for Portions of the West and Southern Plains; Dangerous Heat for the Northwest

A front will bring chances for showers and thunderstorms over the Central Rockies and Southern Plains. Heavy rains are also possible in southern Arizona. A dangerous heat wave continues across the Pacific Northwest. Hot, dry conditions and lightning may cause new fire starts across the Cascades. Conversely, a cold front will bring unseasonably cool temperatures to much of the lower 48. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

75°F

24°C

Humidity 76%
Wind Speed S 6 mph
Barometer 29.85 in (1010.4 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 24 Aug 8:52 pm EDT
Extended Forecast for

Catharpin VA

  • Tonight

    Tonight: Isolated showers and thunderstorms before 11pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 65. Light and variable wind becoming southwest around 5 mph.  Chance of precipitation is 20%.

    Low: 65 °F

    Isolated
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 81. Northwest wind 7 to 10 mph.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 58. Northwest wind 3 to 7 mph.

    Low: 58 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 78. West wind 3 to 7 mph.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 56. Northwest wind around 6 mph.

    Low: 56 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Isolated showers and thunderstorms before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 65. Light and variable wind becoming southwest around 5 mph. Chance of precipitation is 20%.
Monday
Sunny, with a high near 81. Northwest wind 7 to 10 mph.
Monday Night
Partly cloudy, with a low around 58. Northwest wind 3 to 7 mph.
Tuesday
Sunny, with a high near 78. West wind 3 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 56. Northwest wind around 6 mph.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Partly sunny, with a high near 78.
Thursday Night
Mostly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Catharpin VA
 38.86°N 77.58°W (Elev. 295 ft)
7:56 pm EDT Aug 24, 2025
9pm EDT Aug 24, 2025-6pm EDT Aug 31, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database